234650620440 has 320 divisors, whose sum is σ = 807916032000. Its totient is φ = 61063476480.

The previous prime is 234650620433. The next prime is 234650620481. The reversal of 234650620440 is 44026056432.

234650620440 is a `hidden beast` number, since 23 + 4 + 6 + 5 + 0 + 620 + 4 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 234650620395 and 234650620404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 26566825 + ... + 26575655.

It is an arithmetic number, because the mean of its divisors is an integer number (2524737600).

Almost surely, 2^234650620440 is an apocalyptic number.

234650620440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234650620440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403958016000).

234650620440 is an abundant number, since it is smaller than the sum of its proper divisors (573265411560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

234650620440 is a wasteful number, since it uses less digits than its factorization.

234650620440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9052 (or 9039 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 234650620440 its reverse (44026056432), we get a palindrome (278676676872).

The spelling of 234650620440 in words is "two hundred thirty-four billion, six hundred fifty million, six hundred twenty thousand, four hundred forty".